/*
 * Fundamental constants relating to DHCP Protocol
 *
 * Copyright (C) 1999-2019, Broadcom.
 *
 *      Unless you and Broadcom execute a separate written software license
 * agreement governing use of this software, this software is licensed to you
 * under the terms of the GNU General Public License version 2 (the "GPL"),
 * available at http://www.broadcom.com/licenses/GPLv2.php, with the
 * following added to such license:
 *
 *      As a special exception, the copyright holders of this software give you
 * permission to link this software with independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions
 * of the license of that module.  An independent module is a module which is
 * not derived from this software.  The special exception does not apply to any
 * modifications of the software.
 *
 *      Notwithstanding the above, under no circumstances may you combine this
 * software in any way with any other Broadcom software provided under a license
 * other than the GPL, without Broadcom's express prior written consent.
 *
 *
 * <<Broadcom-WL-IPTag/Open:>>
 *
 * $Id: bcmdhcp.h 700076 2017-05-17 14:42:22Z $
 */

#ifndef _bcmdhcp_h_
#define _bcmdhcp_h_

/* DHCP params */
#define DHCP_TYPE_OFFSET 0    /* DHCP type (request|reply) offset */
#define DHCP_TID_OFFSET 4     /* DHCP transition id offset */
#define DHCP_FLAGS_OFFSET 10  /* DHCP flags offset */
#define DHCP_CIADDR_OFFSET 12 /* DHCP client IP address offset */
#define DHCP_YIADDR_OFFSET 16 /* DHCP your IP address offset */
#define DHCP_GIADDR_OFFSET 24 /* DHCP relay agent IP address offset */
#define DHCP_CHADDR_OFFSET 28 /* DHCP client h/w address offset */
#define DHCP_OPT_OFFSET 236   /* DHCP options offset */

#define DHCP_OPT_MSGTYPE 53 /* DHCP message type */
#define DHCP_OPT_MSGTYPE_REQ 3
#define DHCP_OPT_MSGTYPE_ACK 5 /* DHCP message type - ACK */

#define DHCP_OPT_CODE_OFFSET 0 /* Option identifier */
#define DHCP_OPT_LEN_OFFSET 1  /* Option data length */
#define DHCP_OPT_DATA_OFFSET 2 /* Option data */

#define DHCP_OPT_CODE_CLIENTID 61 /* Option identifier */

#define DHCP_TYPE_REQUEST 1 /* DHCP request (discover|request) */
#define DHCP_TYPE_REPLY 2   /* DHCP reply (offset|ack) */

#define DHCP_PORT_SERVER 67 /* DHCP server UDP port */
#define DHCP_PORT_CLIENT 68 /* DHCP client UDP port */

#define DHCP_FLAG_BCAST 0x8000 /* DHCP broadcast flag */

#define DHCP_FLAGS_LEN 2 /* DHCP flags field length */

#define DHCP6_TYPE_SOLICIT 1      /* DHCP6 solicit */
#define DHCP6_TYPE_ADVERTISE 2    /* DHCP6 advertise */
#define DHCP6_TYPE_REQUEST 3      /* DHCP6 request */
#define DHCP6_TYPE_CONFIRM 4      /* DHCP6 confirm */
#define DHCP6_TYPE_RENEW 5        /* DHCP6 renew */
#define DHCP6_TYPE_REBIND 6       /* DHCP6 rebind */
#define DHCP6_TYPE_REPLY 7        /* DHCP6 reply */
#define DHCP6_TYPE_RELEASE 8      /* DHCP6 release */
#define DHCP6_TYPE_DECLINE 9      /* DHCP6 decline */
#define DHCP6_TYPE_RECONFIGURE 10 /* DHCP6 reconfigure */
#define DHCP6_TYPE_INFOREQ 11     /* DHCP6 information request */
#define DHCP6_TYPE_RELAYFWD 12    /* DHCP6 relay forward */
#define DHCP6_TYPE_RELAYREPLY 13  /* DHCP6 relay reply */

#define DHCP6_TYPE_OFFSET 0 /* DHCP6 type offset */

#define DHCP6_MSG_OPT_OFFSET 4 /* Offset of options in client server messages  \
                                */
#define DHCP6_RELAY_OPT_OFFSET 34 /* Offset of options in relay messages */

#define DHCP6_OPT_CODE_OFFSET 0 /* Option identifier */
#define DHCP6_OPT_LEN_OFFSET 2  /* Option data length */
#define DHCP6_OPT_DATA_OFFSET 4 /* Option data */

#define DHCP6_OPT_CODE_CLIENTID 1 /* DHCP6 CLIENTID option */
#define DHCP6_OPT_CODE_SERVERID 2 /* DHCP6 SERVERID option */

#define DHCP6_PORT_SERVER 547 /* DHCP6 server UDP port */
#define DHCP6_PORT_CLIENT 546 /* DHCP6 client UDP port */

#endif /* #ifndef _bcmdhcp_h_ */
